c14N=4 mN FAq/N( 18,q(7)+22,q(7)).

The ellipsis denotes the contribution of the operators in
Eqs. (REF )-(REF ), with the results given in
Eqs. (17)-(26) of Ref. [1]}. The coefficient
\(c_{14}^N\)  receives only contributions from dimension-seven
operators. In the above expressions we do not show the contributions
of the Rayleigh operators, since their hadronic matrix elements are
poorly known [2]}. The coefficient \(c_1^N\) , for
instance, receives a nonperturbative contribution from the CP-even
Rayleigh operator, \(Q_{11}^{(7)}\sim (\chi \bar{\chi })FF\)  in
Eq. (REF ). In the EFT with nonrelativistic nucleons one
would need to keep both this contribution to \({\cal O}_1^N\) , as well as the
Rayleigh operator \(Q_{11}^{(7)}\)  itself, with appropriately modified
Wilson coefficient due to the matching. The operators
\(Q_{12}^{(7)}\sim (\chi \bar{i} \gamma _5 \chi )F F\) ,
\(Q_{13}^{(7)}\sim (\chi \bar{\chi })F\tilde{F}\) , and
\(Q_{14}^{(7)}\sim (\chi \bar{i} \gamma _5 \chi )F \tilde{F}\)  similarly give
contributions in the nonperturbative matching to the non-relativistic
operators \({\cal O}_{11}^N \sim \vec{S}_\chi \cdot \vec{q}\) , \({\cal O}_{10}^N\sim \vec{S}_N\cdot \vec{q}\) , and \({\cal O}_{6}^N \sim (\vec{S}_\chi \cdot \vec{q}\,)(\vec{S}_N\cdot \vec{q}\,)\) , respectively. The matching also
modifies the Wilson coefficients of these Rayleigh operators. At
present only NDA estimates for the effects of the matching are
available [2]}, [4]}, [5]}, [6]}.
